SPRAYING AND FUMIGATING. 539 



to require some considerable effort. This becomes neces- 

 sary also in order that the pull from each side may 

 stretch out the front edge of the tent so that it may clear 

 the top of the tree. 



The tent is now spread out over two trees and reaches 

 the ground on either side. As the men at the ropes contin- 

 ue to back away the tent is slipped from one tree to the 

 next and the poles fall to the ground. In this last stage in 

 the process care must be taken that both poles reach the 

 ground at about the same time. If this is not done the 

 tent will shift to the side of the pole which first reaches 

 the ground, and if that side is pulled very much too fast 

 the tent may not reach the ground on the opposite side, 

 and sheet tents are rather harder to adjust than other 

 kinds. This same difficulty, in regard to the front and 

 back ends of the tent, often occurs when using a tent 

 barely large enough for the tree. If the tent is pulled too 

 slowly the poles will slip when the tent is not quite over, 

 and the front will not reach the ground ; and on the other 

 hand, if it is pulled too rapidly, the tent will go too far, 

 and the back end be free from the ground. The oval tent 

 was made to overcome this difficulty, for with it care only 

 need be taken to slide the tent far enough. 



When using a large tent for a very small tree the tent 

 is pulled up so as to have sufficient slack canvas to go over 

 the tree, and this is pulled over by hand. When being 

 removed, the cloth is pulled back in the same manner as 

 it was put on and dragged along the ground to the next 

 tree. 



In the case of very large trees, which require the lifter 

 style of pole, the process is as follows : The poles are set 

 up and the guy-ropes attached as described for the box 

 tent, only that two poles are used. The other ropes are 



